256503184

素因数分解:

$2^4\times 7^1\times {\mathrm{2290207}}^1$

素因数の和:2290222

約数の個数: 20

約数和(自身を含む): 567971584

約数和(自身を除く): 311468400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2290207, 4580414, 9160828, 16031449, 18321656, 32062898, 36643312, 64125796, 128251592, 256503184]

約数ペア:

[(1, 256503184), (2, 128251592), (4, 64125796), (7, 36643312), (8, 32062898), (14, 18321656), (16, 16031449), (28, 9160828), (56, 4580414), (112, 2290207)]